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-rw-r--r--include/linux/crc-ccitt.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/crc-ccitt.h b/include/linux/crc-ccitt.h
index f52696a1ff0d..7cd45a4bc224 100644
--- a/include/linux/crc-ccitt.h
+++ b/include/linux/crc-ccitt.h
@@ -4,12 +4,19 @@
#include <linux/types.h>
extern u16 const crc_ccitt_table[256];
+extern u16 const crc_ccitt_false_table[256];
extern u16 crc_ccitt(u16 crc, const u8 *buffer, size_t len);
+extern u16 crc_ccitt_false(u16 crc, const u8 *buffer, size_t len);
static inline u16 crc_ccitt_byte(u16 crc, const u8 c)
{
return (crc >> 8) ^ crc_ccitt_table[(crc ^ c) & 0xff];
}
+static inline u16 crc_ccitt_false_byte(u16 crc, const u8 c)
+{
+ return (crc << 8) ^ crc_ccitt_false_table[(crc >> 8) ^ c];
+}
+
#endif /* _LINUX_CRC_CCITT_H */